Author: Mark Laurence

Maintenance of Green Walls

We are now a decade into the explosion of living or green walls.  There have been many successes and some notable failures along the way, some of of which may be system-induced and some caused by inadequate or inappropriate maintenance regimes. Assuming we now have systems that work at least reasonably well, what is required by

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Living Walls

There is something incredibly exciting about living walls.  Stacking green plants on the vertical plane on buildings, where you’d think they just should not be, goes against the odds.  Yet nowadays they are almost commonplace, and most people have encountered one somewhere.  They cling to life with extraordinary tenacity, usually in a growing medium only

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Arboriculture in the UAE

Last winter I did some interesting work in Abu Dhabi, concerning the care of trees.  I can’t name one of the projects (a royal palace), but one was Mushrif Central Park undergoing a major redevelopment (and now reopened – March 2015).  In both places I undertook a survey of 100+ broadleaf trees (as opposed to palms),

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Treecare in the Middle-East

I am working as a consulting arborist in the UAE for a couple of large projects.  Whilst there, I have been observing the broad state of the art and there is a long way to go in bringing across current best practice to the Middle-East, and I suspect that is so for many parts of

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Why we can – and MUST – create new Adaptive Ecosystems

This article was written in 2013 and updated in April 2019. I’ve written before on the subject of adaptive landscapes and trans-migrational landscapes but I’ve been reading recently of a real-life ecology that was created by man in the last 150 years, and is thriving.  This is on Ascension Island in the South Atlantic Ocean, a

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Biophilia: why I love indoor plants and green walls

I’ve got to admit it; plants do something to me.  When in their proximity, either indoors or out, things feel different.  It could be because they change the air, giving me oxygen, removing pollutants and humidifying the atmosphere.  It could be because they give me a subtle but direct contact with Nature.  Maybe they talk

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Green walls and air pollution

Last year some interesting work emerged over the use of green walls for mitigation of air pollution; in particular the ability (or otherwise) of plants to remove particulate matter from the air, with pm10 being the size range focussed upon.  This is the particle size most emitted from diesel exhaust, and this does a lot

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